Variant chr6-37644545-G-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_153487.4(MDGA1):c.2353C>A(p.Arg785Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000688 in 1,453,840 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 6.9e-7 ( 0 hom. )

Consequence

MDGA1
NM_153487.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.48

Variant links:

Genes affected

MDGA1 (HGNC:19267): (MAM domain containing glycosylphosphatidylinositol anchor 1) This gene encodes a glycosylphosphatidylinositol (GPI)-anchored cell surface glycoprotein that is expressed predominantly in the developing nervous system. In addition to possessing several cell adhesion molecule-like domains, the mature protein has six Ig-like domains, a single fibronectin type III domain, a MAM domain and a C-terminal GPI-anchoring site. Studies in other mammals suggest this protein plays a role in cell adhesion, migration, and axon guidance and, in the developing brain, neuronal migration. In humans, this gene is associated with bipolar disorder and schizophrenia. [provided by RefSeq, Oct 2016]

MDGA1 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.3171559).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
MDGA1	NM_153487.4 linkuse as main transcript	c.2353C>A	p.Arg785Ser	missense_variant	13/17	ENST00000434837.8	NP_705691.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
MDGA1	ENST00000434837.8 linkuse as main transcript	c.2353C>A	p.Arg785Ser	missense_variant	13/17	1	NM_153487.4	ENSP00000402584	P1	Q8NFP4-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.88e-7

AC:

AN:

1453840

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

723142

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

9.02e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Bravo

AF:

0.00000378

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

May 23, 2024

The c.2353C>A (p.R785S) alteration is located in exon 13 (coding exon 13) of the MDGA1 gene. This alteration results from a C to A substitution at nucleotide position 2353, causing the arginine (R) at amino acid position 785 to be replaced by a serine (S). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.92

BayesDel_addAF

Pathogenic

0.19

BayesDel_noAF

Uncertain

0.040

CADD

Uncertain

DANN

Uncertain

0.99

DEOGEN2

Benign

0.042

T;.;.

Eigen

Uncertain

0.31

Eigen_PC

Uncertain

0.35

FATHMM_MKL

Uncertain

0.86

LIST_S2

Uncertain

0.86

D;D;D

M_CAP

Benign

0.021

MetaRNN

Benign

0.32

T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.1

L;.;L

MutationTaster

Benign

0.90

D;D;D

PrimateAI

Uncertain

0.76

PROVEAN

Benign

-0.59

N;.;N

REVEL

Benign

0.25

Sift

Benign

0.085

T;.;T

Sift4G

Benign

0.13

T;.;T

Polyphen

0.99

D;.;D

Vest4

0.75

MutPred

0.53

Gain of glycosylation at R785 (P = 0.009);Gain of glycosylation at R785 (P = 0.009);Gain of glycosylation at R785 (P = 0.009);

MVP

0.75

MPC

1.0

ClinPred

0.89

GERP RS

4.3

Varity_R

0.12

gMVP

0.73

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.0

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over